Game Window, Snake body & movement

BlankProjectTemplate/POC_Demo/Snake_2.o_Demo.py

+#standard set up
+import pygame
+pygame.init()
+
+#setting width and height of window
+win = pygame.display.set_mode((500,500))
+
+pygame.display.set_caption("My Game")
+
+white = (255,255,255)
+black = (0,0,0)
+
+x = 50
+y = 50
+width = 40
+height = 40
+vel = 10
+
+speed = 40
+# 0 - (- direction) , 1 - (+ direction)
+direction = 0
+# 0 - x-axis , 1 - y-axis
+axis = 0
+
+run = True
+
+def changeXY(x,y,axis,direction):
+    if not (axis):
+        x += vel*direction
+##    else:
+##        y += vel*direction
+        
+
+while run:
+    pygame.time.delay(speed) #create a delay to prevent any unwanted behaviour
+
+    #events are anything that happens from the user
+    #we loop through the list of events that happen by the user's actions
+    for event in pygame.event.get():
+        
+        if event.type == pygame.QUIT:
+            run = False
+
+        #Each event type has an integer assigned to it. KEYDOWN has the code 2
+        if event.type == pygame.KEYDOWN:
+            if (event.key == pygame.K_LEFT):
+                    axis = 0;direction=-1
+            if (event.key == pygame.K_RIGHT):
+                    axis = 0;direction=1
+            if (event.key == pygame.K_UP):
+                    axis = 1;direction=-1
+            if (event.key == pygame.K_DOWN):
+                    axis = 1;direction=1
+
+    #Snake moving depending on axis and direction        
+    if (axis):
+        y += vel*direction
+    else:
+        x += vel*direction
+
+
+    win.fill(white)      
+    #all colors are defined in RGB with Pygame
+    pygame.draw.rect(win,(255,0,0), (x,y,width, height))
+    #we have to update the display to see the drawing of our object. Since it does
+    #not automatically update
+    pygame.display.update()
+
+#Quit the game
+pygame.quit()